With the development and progress of intelligent transportation, the application of infrared thermal imaging technology in road monitoring and highway monitoring system is becoming more and more common. At the same time, this technology has also been applied in the field of urban traffic monitoring and signal light adaptive control.Infrared thermal imaging technology can clearly distinguish motor vehicles, non-motor vehicles and pedestrians by observing thermal energy signals. The purpose of this paper is to introduce how to use infrared thermal imaging technology to detect the presence of pedestrians and non-motor vehicles.

Nowadays, traffic sensors based on infrared thermal imaging technology have been understood by traffic management departments at home and abroad, and they are also interested in using sensors to detect pedestrians at intersections.

The thermal imaging sensor uses the different temperature signals generated by pedestrians and non-motor vehicles on the road to present the thermal image, thus realizing the existence detection function. The advantage of thermal imaging technology is that it does not need any light source on the road to work properly and will not be imaged by direct sunlight. Therefore, regardless of light and dark, thermal imaging technology sensors can provide 24-hour pedestrian and non-motor vehicle detection.

In addition, intelligent analysis software also makes infrared thermal imaging technology. When pedestrians or non-motor vehicles enter the area, the intelligent software connected to the thermal image sensor will trigger the detection and transmit the signal to the traffic signal control machine.

The application of pedestrian detection sensor at crossroads (crossroads with signal system) can manage traffic lights or warning lights by detecting the presence of pedestrians at intersections.
A sensor will transmit information to a traffic signal controller through contact closure or TCP/IP, making traffic lights and warning systems more flexible and ensuring that pedestrians are safer in the traffic environment. At the same time, the adaptation of signal lights and warning lights can avoid unnecessary waiting for pedestrians and drivers. Therefore, no matter whether the intersection is equipped with signal lights, the installation of sensors will benefit pedestrians, motor vehicle drivers.

In many countries, including China, pedestrians can quickly pass through horses by pressing pedestrian buttons. With the development and progress of intelligent transportation, infrared thermal imaging technology is increasingly widely used in road monitoring and highway monitoring systems. At the same time, this technology has also been applied in urban traffic monitoring and signal light adaptive control. Infrared thermal imaging technology can clearly distinguish motor vehicles, non-motor vehicles and pedestrians by observing thermal energy signals. The purpose of this paper is to introduce how to use infrared thermal imaging technology to detect the presence of pedestrians and non-motor vehicles. The Application of Infrared Thermal Imaging in the Detection of Pedestrian and Non-motor Vehicles

When the pedestrian detection sensor detects that there are no pedestrians waiting to pass through the intersection, the sensor will automatically send the video signal to the signal control machine and arrange the passage of the motor vehicle, thus increasing the traffic flow rate of 30%. However, according to the survey, when the road is open, up to 70% of pedestrians pass through the road when the signal light does not turn green after pressing the pedestrian button, which means that no pedestrians wait when the signal light turns green. This causes motor vehicles to wait unnecessarily and thus produces up to three times carbon dioxide emissions. Through the pedestrian detection sensor, when there is no pedestrian at the intersection, the sensor will automatically send the video signal to the signal control machine and arrange the passage of the motor vehicle, thus increasing the traffic flow rate of 30%.

As we all know, when the signal light is green, pedestrians can pass and the motor vehicle stops; when the yellow light, the motor vehicle still stops, giving the appropriate time for pedestrians to continue to pass. However, in case of special circumstances, if the disabled need to extend the passage time when crossing the road, the pedestrian detection sensor can transmit the detected signal to the traffic signal system, thus prolonging the time of the yellow light and ensuring the safety of the pedestrian.

In addition, if the sensor detects no pedestrian crossing the road, the yellow lamp can also be shortened by the sensing signal, which can improve the efficiency of road operation. Schools, gymnasiums, commercial centers, shopping malls and other facilities around the crossroads often can not accurately estimate the daily changing flow of people, the preset time ratio can not meet the real situation of different periods of the day. It is obvious that this is a completely different traffic situation when a road near the stadium is near the football match. Pedestrian sensors can give priority to pedestrians who want to cross the road without conflicting with a fixed signal scheme that is more suitable for traffic when only one pedestrian.

In the planning of crosswalks and non-motorized driving lanes, it is very important to use detailed and true data. Load pedestrian sensor data, pedestrian flow will be clearly presented in front of the eyes. Because pedestrian sensors can not only distinguish pedestrians, motor vehicles, or non-motor vehicles, but also store real-time traffic data to record the basic traffic flow. The application of sensors at signal-free system junctions determines the severity of the accident when the driver drives. At the moment of the accident, the driver reflects that the time and the speed of the brake will also be closely related to the accident.

Reaction time is influenced by many factors: inattention, bad weather, low visibility, drunk driving and so on. In addition, it may be private cars, trucks or parked buses that block the sight of drivers or pedestrians until it is too late for drivers to find pedestrians. In the intersection section without signal system, the traditional stroboscopic warning lamp is the only choice. It can remind the driver to walk through the pedestrian and non-motor vehicle in front of the road and remind the driver to slow down in time. Nevertheless, the role of traditional stroboscopic lights is often ignored because drivers often do not change their driving behavior because of stroboscopic warning lights. Research shows that dynamic warning lights that start flashing when activated by pedestrians and non-motor vehicles are more effective, enhance drivers' awareness, make them react faster and slow down. Pedestrian sensors can activate flashlights or highway LED warning lights, thus preventing traffic accidents and reducing the number of dangerous avoidance between drivers and pedestrians: one or both sides need to stop or turn to avoid collision.

ZIP Technology Co., Ltd. specializes in the R & D, manufacturing and sales of multispectral technology products, dedicated to provide global customers with professional, competitive infrared thermal imaging, low light imaging and other multispectral thermal imaging products and industry solutions. The company has gathered a group of senior technicians who have studied and engaged in thermal imaging technology for more than ten years, accounting for 49% of the total number of people in the company. The company has developed infrared movement with independent intellectual property rights, covering the technical fields including infrared optical lens, whole machine structure heat dissipation analysis, core shutter devices, infrared basic algorithm research, industry application algorithm analysis and so on. Is a collection of optical, mechanical, electrical science research, software and hardware development and technical services as one of the high-tech enterprises.